Genotype Size And Genetic Diversity Analysis

Distribution And Assessment Of Genetic Diversity Of Canes In Khurda District

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  • To undertake quantitative ecological study of the populations of 3 species of Calamus (C. guruba, C. viminalis and C. latifolius) and mapping their distribution in Khurda Forest Division.
  • To derive phylogenetic relationships among the species and to assess inter and intra-population genetic diversity in these species using molecular tools.

Salient Achievements

An attempt was made to make a quantitative assessment of the three dominant wild species of Calamus (C. guruba, C. viminalis and C. latifolius), mapping their distribution in Khurda Forest Division and documenting the population structure of these taxa based on extensive field survey. Eleven (11) nos. of sample plots, each of 100 X 100 m size were laid in Ankula, Baliganda, Badakhola, Jeripada, Raidiha, Selingpara, Khadijhari forests of Balugaon Forest Range of Khurda forest division characterized by semi-evergreen forests.

Image result for Genotype Size And Genetic Diversity Analysis In addition to earlier known 3 species of cane (Calamusguruba, C. latifolius and C. viminalis), occurrence of three more species such as Calamuslatispinus, C. caesia and C. rotang has been reported from forest of Khurda Forest Division. The locality of occurrence and distribution of the species and population structure of all the 6 species have been recorded.

Genetic diversity and molecular phylogeny was analyzed using ISSR markers, where exceedingly high polymorphism (96.34%) was observed. Molecular analysis established close relationships between C. viminalis and C. guruba and C. latifolius-C. rotang-C. caesius formed another cluster showing closer genetic affinity. Genetic diversity analysis and population genetic studies were conducted from 8 populations of Calamusguruba from 5 districts of Odisha using ISSR marker.

Image result for Genotype Size And Genetic Diversity AnalysisThe population genetic analysis revealed a very low genetic variability at species level as compared to other species having similar life-history traits. The highest polymorphism (20.31%) was found in Cuttack and lowest (6.25%) in Ghatikia population. The data revealed partitioning of 30.74% of the total genetic diversity within the population and 69.25% among populations. The study suggested that in view of higher genetic diversity, C. guruba population from Cuttack must be preserved and utilized as germplasm resources for ex situ conservation and as source of seed/ planting materials for reintroduction programmes.

Quantitative Assessment, Mapping Of Geographical Distribution And Study Of Population Structure Of Forest Species

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  • Enumerating the plant resources, their population levels and structure:- diversity, dominance, density of individual species.
  • Developing thematic maps of the density and distribution for all the species of economic importance and botanical interest (medicinal, NTFP, timber, oil-yielding, fodder, fibre and special plant groups).
  • Quantitative estimation of available resource levels of the plants and level of disturbance.
  • Identifying the threats on the plant resources and enlisting the threatened species for conservation action.

Salient Achievements

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Plant diversity and population inventory was made in 28 grids of 1000 m X 5m size (0.5 ha) representing five major forest types of Odisha i.e. I. Odisha Semi-evergreen forests; II. Tropical Moist Desiduous forests, III. Tropical Dry Deciduous Forest, IV. Central Indian Hill forest and V. Littoral and Tidal Swamp forest. No. of plants, GBH, height of all trees above 30 cm GBH were recorded. Diversity and density of herbs, shrubs, lianas and regeneration of tree species were assessed from 5 x 5 m size plots laid within transects. The stand density, basal area, diversity indices, regeneration potential, distribution of diameter classes will be calculated and compared to characterize a distinct forest type. The level of disturbance was assessed laying grids at different distances from village clusters. A total of 100 grids will be worked out under the project and finally the data on ecological and diversity parameters will be analyses.

Ethnobotanical Studies And Indigenous Knowledge

Survey Of Wild Tubers And Their Uses By Tribals Of Similipal Biosphere Reserve

To make an inventory of the wild tubers, roots, rhizomes etc. used by the tribal people inhabiting the Similipal Biosphere Reserve and their mode of use/ consumption.

Salient Achievements

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Due to its peculiar geographical location and edaphic and climatic variables, Similipal Biosphere Reserve is a hot-spot of plant biodiversity. It is inhabited by a large number of primitive tribal people belonging to ErengaKharias, Mankirdia, Kolha, Santal, Kharia, Bhatudi, Bhumija, Ho, Munda, Ganda and PauriBhunyans tribes. They depend on agriculture, wage earning, hunting, food gathering, and collection of forest produces such as fire wood, roots an tubers, leaves, fruits, medicinal plants, gum resin etc. for their livelihood. Traditionally, they rely on a number of wild plants to supplement their diet. They collect and gather a number of tubers, rhizomes, roots, leafy shoots, flowers and fruits and wild mushrooms as regular food materials and also at the time of food scarcity.

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A study was undertaken within the tribal villages of Similipal Biosphere Reserve during 2008-2010 and both qualitative and quantitative data were amassed from primary and secondary sources in several seasons of the year. the first data were collected through regular field surveys amid local people, group discussions, PRA and Key Informant Survey. Information on quantity of tubers and rhizomes collected, consumed and sold for every species and mode of consumption and use value were collected through interaction with local tribals.

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In the present work, ethno-botanical information on 36 wild plant species having edible tubers/ rhizomes and used by the tribals of SimilipalBiosphare Reserve have been recorded. Several species of Dioscorea and aroids are commonly used by all tribes. While Arisaematortuosum, Costus specious, Pureriatuberosa, Asparagus racemosus etc. were found to have medicinal value, Dioscorea spp. and Pueraria tuberose have good food value. The wild population of many tuberous species have been depleted due to destructive harvesting and overexploitation.

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